Problem With GUI of Net Beans

[Raihan Jamal]

I have created a GUI on the Netbeans.... and I wanted to make a cross sign (x)
at the same point where user is clicking on the map.... As I have done it successfully.... but the problem is that when I am clicking on the map the cross sign is not coming at the same point.... it is coming very far from that point where i am clicking.... for example I have attached the sample image of my application.... when I am clicking on L of Los Angeles in the given map.... the red cross sign is showing very far from it... I don't why is it happening so.... Anybody any idea on this what can be the problem... This is my code...

  public class frame extends javax.swing.JFrame implements MouseListener, MouseMotionListener {

    /** Creates new form frame */
    public frame() {
        initComponents();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jPanel2 = new javax.swing.JPanel();
        jLabel2 = new javax.swing.JLabel();
        jRadioButton1 = new javax.swing.JRadioButton();
        jRadioButton2 = new javax.swing.JRadioButton();
        jRadioButton3 = new javax.swing.JRadioButton();
        jRadioButton4 = new javax.swing.JRadioButton();
        jTextField1 = new javax.swing.JTextField();
        jLabel3 = new javax.swing.JLabel();
        jTextField2 = new javax.swing.JTextField();
        jTextField3 = new javax.swing.JTextField();
        jLabel4 = new javax.swing.JLabel();
        jCheckBox1 = new javax.swing.JCheckBox();
        jCheckBox2 = new javax.swing.JCheckBox();
        jTextField4 = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jPanel1.setBorder(new javax.swing.border.LineBorder(new java.awt.Color(0, 0, 0), 1, true));
        jPanel1.setPreferredSize(new java.awt.Dimension(600, 500));
        jPanel1.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jPanel1MouseClicked(evt);
            }
        });

        jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel1.setIcon(new javax.swing.ImageIcon("C:\\photos\\la.jpg")); // NOI18N
        jLabel1.setPreferredSize(new java.awt.Dimension(600, 500));
        jLabel1.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jLabel1MouseClicked(evt);
            }
            public void mouseEntered(java.awt.event.MouseEvent evt) {
                jLabel1MouseEntered(evt);
            }
            public void mousePressed(java.awt.event.MouseEvent evt) {
                jLabel1MousePressed(evt);
            }
        });
        jLabel1.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
            public void mouseMoved(java.awt.event.MouseEvent evt) {
                jLabel1MouseMoved(evt);
            }
        });

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, 601, Short.MAX_VALUE)
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jLabel2, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 362, Short.MAX_VALUE)
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jLabel2, javax.swing.GroupLayout.DEFAULT_SIZE, 359, Short.MAX_VALUE)
        );

        jRadioButton1.setFont(new java.awt.Font("Rockwell", 1, 14));
        jRadioButton1.setText("Nearest Neighbour");

        jRadioButton2.setFont(new java.awt.Font("Rockwell", 1, 14));
        jRadioButton2.setText("Range");

        jRadioButton3.setFont(new java.awt.Font("Rockwell", 1, 14));
        jRadioButton3.setText("Find Matching Restaurant");

        jRadioButton4.setFont(new java.awt.Font("Rockwell", 1, 14));
        jRadioButton4.setText("Find Relevant Photos");

        jTextField1.setText("jTextField1");
        jTextField1.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jTextField1MouseClicked(evt);
            }
        });

        jLabel3.setFont(new java.awt.Font("Rockwell", 1, 14));
        jLabel3.setText("Current Coordinates (X,Y)");

        jTextField2.setEditable(false);
        jTextField2.setFont(new java.awt.Font("Rockwell", 1, 18));

        jTextField3.setText("jTextField3");

        jLabel4.setFont(new java.awt.Font("Rockwell", 1, 14));
        jLabel4.setText("Active Features");

        jCheckBox1.setFont(new java.awt.Font("Rockwell", 1, 14));
        jCheckBox1.setText("Restaurants");

        jCheckBox2.setFont(new java.awt.Font("Rockwell", 1, 14));
        jCheckBox2.setText("Photos");

        jTextField4.setText("jTextField4");

        jButton1.setFont(new java.awt.Font("Rockwell", 1, 14));
        jButton1.setText("Clear");

        jButton2.setFont(new java.awt.Font("Rockwell", 1, 14));
        jButton2.setText("Submit Query");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGroup(layout.createSequentialGroup()
                                .addGap(14, 14, 14)
                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jTextField1, javax.swing.GroupLayout.DEFAULT_SIZE, 348, Short.MAX_VALUE)
                                    .addComponent(jRadioButton2)
                                    .addComponent(jRadioButton1)
                                    .addComponent(jRadioButton4)
                                    .addComponent(jRadioButton3))))
                        .addGap(52, 52, 52))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(31, 31, 31)
                        .addComponent(jLabel3)
                        .addGap(18, 18, 18)
                        .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 106, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(78, 78, 78)))
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 600, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(layout.createSequentialGroup()
                                .addGap(44, 44, 44)
                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jCheckBox2)
                                    .addComponent(jCheckBox1)))
                            .addGroup(layout.createSequentialGroup()
                                .addGap(25, 25, 25)
                                .addComponent(jLabel4))
                            .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 244, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addGroup(layout.createSequentialGroup()
                                .addGap(220, 220, 220)
                                .addComponent(jTextField4, javax.swing.GroupLayout.PREFERRED_SIZE, 75, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addGap(26, 26, 26))
                            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 195, Short.MAX_VALUE)
                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                                    .addComponent(jButton1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                    .addComponent(jButton2, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                                .addGap(25, 25, 25))))))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18)
                        .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 92, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18)
                        .addComponent(jRadioButton1)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jRadioButton2)
                        .addGap(18, 18, 18)
                        .addComponent(jRadioButton3)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addComponent(jRadioButton4))
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 500, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jLabel4)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(jCheckBox1))
                            .addComponent(jTextField4))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jCheckBox2)))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jLabel3)
                            .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 43, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 75, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGap(20, 20, 20))
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                        .addComponent(jButton1)
                        .addGap(18, 18, 18)
                        .addComponent(jButton2)
                        .addGap(40, 40, 40))))
        );

        pack();
    }// </editor-fold>

   public void mouseMoved(java.awt.event.MouseEvent evt) {
       if (evt.getSource() == jLabel1) {
          frame.this.jLabel1MouseMoved(evt);
        }
    }
public void mouseEntered(java.awt.event.MouseEvent evt) {
        //if (evt.getSource() == jLabel1) {
          //  frame.this.jLabel1MouseEntered(evt);
        //}
    }
public void mouseDragged(java.awt.event.MouseEvent evt) {

    }
public void mouseExited(java.awt.event.MouseEvent evt) {

    }
public void mouseReleased(java.awt.event.MouseEvent evt) {

    }
public void mousePressed(java.awt.event.MouseEvent evt) {

    }
public void mouseClicked(java.awt.event.MouseEvent evt) {

    }

    private void jLabel1MouseMoved(java.awt.event.MouseEvent evt) {                                   
        // TODO add your handling code here:
       eventOutput("", evt);

    }                                  

    private void jLabel1MouseEntered(java.awt.event.MouseEvent evt) {                                     
        // TODO add your handling code here:
        eventOutput("", evt);
    }                                    

    private void jLabel1MousePressed(java.awt.event.MouseEvent evt) {
        // TODO add your handling code here:
            
    }

    private void jLabel1MouseClicked(java.awt.event.MouseEvent evt) {
        // TODO add your handling code here:
             int x = evt.getX();  // x-coordinate where user clicked.
             int y = evt.getY();  // y-coordinate where user clicked.
             System.out.println(" " +x);
             System.out.println(" " +y);

             Graphics g = getGraphics();  // Graphics context for drawing
                                          // directly on this JPanel.
              Graphics2D g2 = (Graphics2D) g;
              Graphics2D g1 = (Graphics2D) g;
             if ( evt.isMetaDown() ) {
                    // User right-clicked at the point (x,y).
                    // Draw a blue oval centered at the point (x,y).
                    // (A black outline around the oval will make it
                    // more distinct when ovals and rects overlap.)
                 g2.setColor(Color.red);
                 g2.setStroke(new BasicStroke(2));
                 g1.setStroke(new BasicStroke(4));

                 g2.draw(new Line2D.Double(x+5, y+5, x-5, y-5));
                 g1.draw(new Line2D.Double(x+5, y-5, x-5, y+5));
               //  g2.drawString("", x, 10);
                 //g.fillOval( x - 30, y - 15, 60, 30 );
                 //g.setColor(Color.black);
                 //g.drawOval( x - 30, y - 15, 60, 30 );
             }
    }

    private void jPanel1MouseClicked(java.awt.event.MouseEvent evt) {
        // TODO add your handling code here:
    }

    private void jTextField1MouseClicked(java.awt.event.MouseEvent evt) {
        // TODO add your handling code here:
    }
void eventOutput(String eventDescription, MouseEvent evt) {
        jTextField2.setText(eventDescription
                + " (" + evt.getX() + "," + evt.getY() + ")"
                );
      //  jTextField2.setCaretPosition(jTextField2.getDocument().getLength());
    }
    /**
    * @param args the command line arguments
    */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new frame().setVisible(true);
            }
        });
    }  

[Michael Dunn]

this is just wrong

Graphics g = getGraphics();  // Graphics context for drawing
                                          // directly on this JPanel.

learn to do it the correct way, then start over

http://java.sun.com/docs/books/tutorial/uiswing/painting/index.html

[Raihan Jamal]

Can you tell me why is it wrong.... As i have tried the same thing with this code... and it is working fine with this code....

  import java.awt.*;                                                       
   import java.awt.event.*;                                              
   import javax.swing.*;                
   import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.geom.Arc2D;
import java.awt.geom.Ellipse2D;
import java.awt.geom.GeneralPath;
import java.awt.geom.Line2D;
import java.awt.geom.Rectangle2D;
import java.awt.geom.RoundRectangle2D;                                 
                                                                         
   public class SimpleStamper extends JApplet {                          
                                                                         
                                                                         
      public void init() {                                               
             // This method is called by the system to initialize        
             // the applet.  An object belonging to the nested class     
             // Display is created and installed as the content          
             // pane of the applet.  This Display object does            
             // all the real work.                                       
         Display display = new Display();                                
         setContentPane(display);                                        
      }                                                                  
                                                                     
                                                                         
      class Display extends JPanel implements MouseListener {            
            // A nested class to represent the drawing surface that      
            // fills the applet.                                         
                                                                         
         Display() {                                                     
                              
             setBackground(Color.black);                                 
             addMouseListener(this);                                     
         }                                                               
                                                                         
         public void mousePressed(MouseEvent evt) {                      
                // Since this panel has been set to listen for mouse     
                // events on itself, this method will be called when the 
                // user clicks the mouse on the panel.  (Since the panel 
                // fills the whole applet, that means clicking anywhere  
                // on the applet.)                                       
                                                                         
                                                                    
                                                                         
             int x = evt.getX();  // x-coordinate where user clicked.    
             int y = evt.getY();  // y-coordinate where user clicked.  
             System.out.println(" " +x);  
             System.out.println(" " +y);
                                                                         
             Graphics g = getGraphics();  // Graphics context for drawing
                                          // directly on this JPanel.    
              Graphics2D g2 = (Graphics2D) g;
              Graphics2D g1 = (Graphics2D) g;                                                            
             if ( evt.isMetaDown() ) {                                   
                    // User right-clicked at the point (x,y).            
                    // Draw a blue oval centered at the point (x,y).     
                    // (A black outline around the oval will make it     
                    // more distinct when ovals and rects overlap.)      
                 g2.setColor(Color.red);       
                 g2.setStroke(new BasicStroke(2));
                 g1.setStroke(new BasicStroke(4));

                 g2.draw(new Line2D.Double(x+5, y+5, x-5, y-5));
                 g1.draw(new Line2D.Double(x+5, y-5, x-5, y+5));
               //  g2.drawString("", x, 10);                          
                 //g.fillOval( x - 30, y - 15, 60, 30 );                   
                 //g.setColor(Color.black);                                
                 //g.drawOval( x - 30, y - 15, 60, 30 );                   
             }                                                           
             else {                                                      
                    // User left-clicked (or middle-clicked) at (x,y).   
                    // Draw a red rectangle centered at (x,y).           
                 g.setColor(Color.red);                                  
                 g.fillRect( x - 30, y - 15, 60, 30 );                   
                 g.setColor(Color.black);                                
                 g.drawRect( x - 30, y - 15, 60, 30 );                   
             }                                                           
                                                                         
                                  
                                                                         
          } // end mousePressed();                                       
                                                                         
                                       
                                                                         
         public void mouseEntered(MouseEvent evt) { }                    
         public void mouseExited(MouseEvent evt) { }                     
         public void mouseClicked(MouseEvent evt) { }                    
         public void mouseReleased(MouseEvent evt) { }                   
                                                                         
      }  // end nested class Display                                     
                                                                         
                                                                         
   } // end class SimpleStamper                                          
                                                                           

[Michael Dunn]

> Can you tell me why is it wrong.... As i have tried the same thing with this code... and it is working fine with this code....

run the code, it'll open in your browser
click somehwere and you'll get a red line/box/whatever drawn
OK so far
now minimize the browser, then maximize it again
everything cleared?

[Raihan Jamal]

Yes it is true.... but my main problem is that red cross is not showing at the point where I am clicking on the map... it is showing very far from where I am clicking... Can you do the slight modifications in my code so that I can understand better where I am doing wrong....

[Michael Dunn]

there's no point fixing a minor error when the app. is seriously broken elsewhere.

if you're talking about the first lot of code you posted, it doesn't compile, so I can't run it to test it

[Raihan Jamal]

 

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * frame.java
 *
 * Created on Mar 30, 2010, 11:58:22 PM
 */

//package database;

import java.awt.event.*;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Color;
import java.awt.geom.Line2D;
import java.awt.BasicStroke;
/**
 *
 * @author Raihan Jamal
 */
public class frame extends javax.swing.JFrame implements MouseListener, MouseMotionListener {

    /** Creates new form frame */
    public frame() {
        initComponents();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jPanel2 = new javax.swing.JPanel();
        jLabel2 = new javax.swing.JLabel();
        jRadioButton1 = new javax.swing.JRadioButton();
        jRadioButton2 = new javax.swing.JRadioButton();
        jRadioButton3 = new javax.swing.JRadioButton();
        jRadioButton4 = new javax.swing.JRadioButton();
        jTextField1 = new javax.swing.JTextField();
        jLabel3 = new javax.swing.JLabel();
        jTextField2 = new javax.swing.JTextField();
        jTextField3 = new javax.swing.JTextField();
        jLabel4 = new javax.swing.JLabel();
        jCheckBox1 = new javax.swing.JCheckBox();
        jCheckBox2 = new javax.swing.JCheckBox();
        jTextField4 = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jPanel1.setBorder(new javax.swing.border.LineBorder(new java.awt.Color(0, 0, 0), 1, true));
        jPanel1.setPreferredSize(new java.awt.Dimension(600, 500));
        jPanel1.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jPanel1MouseClicked(evt);
            }
        });

        jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel1.setIcon(new javax.swing.ImageIcon("C:\\photos\\la.jpg")); // NOI18N
        jLabel1.setPreferredSize(new java.awt.Dimension(600, 500));
        jLabel1.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jLabel1MouseClicked(evt);
            }
            public void mouseEntered(java.awt.event.MouseEvent evt) {
                jLabel1MouseEntered(evt);
            }
            public void mousePressed(java.awt.event.MouseEvent evt) {
                jLabel1MousePressed(evt);
            }
        });
        jLabel1.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
            public void mouseMoved(java.awt.event.MouseEvent evt) {
                jLabel1MouseMoved(evt);
            }
        });

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, 601, Short.MAX_VALUE)
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jLabel2, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 362, Short.MAX_VALUE)
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jLabel2, javax.swing.GroupLayout.DEFAULT_SIZE, 359, Short.MAX_VALUE)
        );

        jRadioButton1.setFont(new java.awt.Font("Rockwell", 1, 14));
        jRadioButton1.setText("Nearest Neighbour");

        jRadioButton2.setFont(new java.awt.Font("Rockwell", 1, 14));
        jRadioButton2.setText("Range");

        jRadioButton3.setFont(new java.awt.Font("Rockwell", 1, 14));
        jRadioButton3.setText("Find Matching Restaurant");

        jRadioButton4.setFont(new java.awt.Font("Rockwell", 1, 14));
        jRadioButton4.setText("Find Relevant Photos");

        jTextField1.setText("jTextField1");
        jTextField1.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jTextField1MouseClicked(evt);
            }
        });

        jLabel3.setFont(new java.awt.Font("Rockwell", 1, 14));
        jLabel3.setText("Current Coordinates (X,Y)");

        jTextField2.setEditable(false);
        jTextField2.setFont(new java.awt.Font("Rockwell", 1, 18));

        jTextField3.setText("jTextField3");

        jLabel4.setFont(new java.awt.Font("Rockwell", 1, 14));
        jLabel4.setText("Active Features");

        jCheckBox1.setFont(new java.awt.Font("Rockwell", 1, 14));
        jCheckBox1.setText("Restaurants");

        jCheckBox2.setFont(new java.awt.Font("Rockwell", 1, 14));
        jCheckBox2.setText("Photos");

        jTextField4.setText("jTextField4");

        jButton1.setFont(new java.awt.Font("Rockwell", 1, 14));
        jButton1.setText("Clear");

        jButton2.setFont(new java.awt.Font("Rockwell", 1, 14));
        jButton2.setText("Submit Query");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGroup(layout.createSequentialGroup()
                                .addGap(14, 14, 14)
                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jTextField1, javax.swing.GroupLayout.DEFAULT_SIZE, 348, Short.MAX_VALUE)
                                    .addComponent(jRadioButton2)
                                    .addComponent(jRadioButton1)
                                    .addComponent(jRadioButton4)
                                    .addComponent(jRadioButton3))))
                        .addGap(52, 52, 52))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(31, 31, 31)
                        .addComponent(jLabel3)
                        .addGap(18, 18, 18)
                        .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 106, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(78, 78, 78)))
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 600, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(layout.createSequentialGroup()
                                .addGap(44, 44, 44)
                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jCheckBox2)
                                    .addComponent(jCheckBox1)))
                            .addGroup(layout.createSequentialGroup()
                                .addGap(25, 25, 25)
                                .addComponent(jLabel4))
                            .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 244, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addGroup(layout.createSequentialGroup()
                                .addGap(220, 220, 220)
                                .addComponent(jTextField4, javax.swing.GroupLayout.PREFERRED_SIZE, 75, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addGap(26, 26, 26))
                            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 195, Short.MAX_VALUE)
                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                                    .addComponent(jButton1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                    .addComponent(jButton2, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                                .addGap(25, 25, 25))))))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18)
                        .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 92, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18)
                        .addComponent(jRadioButton1)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jRadioButton2)
                        .addGap(18, 18, 18)
                        .addComponent(jRadioButton3)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addComponent(jRadioButton4))
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 500, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jLabel4)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(jCheckBox1))
                            .addComponent(jTextField4))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jCheckBox2)))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jLabel3)
                            .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 43, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 75, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGap(20, 20, 20))
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                        .addComponent(jButton1)
                        .addGap(18, 18, 18)
                        .addComponent(jButton2)
                        .addGap(40, 40, 40))))
        );

        pack();
    }// </editor-fold>

   public void mouseMoved(java.awt.event.MouseEvent evt) {
       if (evt.getSource() == jLabel1) {
          frame.this.jLabel1MouseMoved(evt);
        }
    }
public void mouseEntered(java.awt.event.MouseEvent evt) {
        //if (evt.getSource() == jLabel1) {
          //  frame.this.jLabel1MouseEntered(evt);
        //}
    }
public void mouseDragged(java.awt.event.MouseEvent evt) {

    }
public void mouseExited(java.awt.event.MouseEvent evt) {

    }
public void mouseReleased(java.awt.event.MouseEvent evt) {

    }
public void mousePressed(java.awt.event.MouseEvent evt) {

    }
public void mouseClicked(java.awt.event.MouseEvent evt) {

    }

    private void jLabel1MouseMoved(java.awt.event.MouseEvent evt) {                                   
        // TODO add your handling code here:
       eventOutput("", evt);

    }                                  

    private void jLabel1MouseEntered(java.awt.event.MouseEvent evt) {                                     
        // TODO add your handling code here:
        eventOutput("", evt);
    }                                    

    private void jLabel1MousePressed(java.awt.event.MouseEvent evt) {
        // TODO add your handling code here:
            
    }

    private void jLabel1MouseClicked(java.awt.event.MouseEvent evt) {
        // TODO add your handling code here:
             int x = evt.getX();  // x-coordinate where user clicked.
             int y = evt.getY();  // y-coordinate where user clicked.
           //  System.out.println(" " +x);
           //  System.out.println(" " +y);

             Graphics g = getGraphics();  // Graphics context for drawing
                                          // directly on this JPanel.
              Graphics2D g2 = (Graphics2D) g;
              Graphics2D g1 = (Graphics2D) g;
             if ( evt.isMetaDown() ) {
                    // User right-clicked at the point (x,y).
                    // Draw a blue oval centered at the point (x,y).
                    // (A black outline around the oval will make it
                    // more distinct when ovals and rects overlap.)
                 g2.setColor(Color.red);
                 g2.setStroke(new BasicStroke(2));
                 g1.setStroke(new BasicStroke(4));

                 g2.draw(new Line2D.Double(x+5, y+5, x-5, y-5));
                 g1.draw(new Line2D.Double(x+5, y-5, x-5, y+5));
               //  g2.drawString("", x, 10);
                 //g.fillOval( x - 30, y - 15, 60, 30 );
                 //g.setColor(Color.black);
                 //g.drawOval( x - 30, y - 15, 60, 30 );
             }
    }

    private void jPanel1MouseClicked(java.awt.event.MouseEvent evt) {
        // TODO add your handling code here:
    }

    private void jTextField1MouseClicked(java.awt.event.MouseEvent evt) {
        // TODO add your handling code here:
    }
void eventOutput(String eventDescription, MouseEvent evt) {
        jTextField2.setText(eventDescription
                + " (" + evt.getX() + "," + evt.getY() + ")"
                );
      //  jTextField2.setCaretPosition(jTextField2.getDocument().getLength());
    }
    /**
    * @param args the command line arguments
    */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new frame().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JCheckBox jCheckBox1;
    private javax.swing.JCheckBox jCheckBox2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JRadioButton jRadioButton1;
    private javax.swing.JRadioButton jRadioButton2;
    private javax.swing.JRadioButton jRadioButton3;
    private javax.swing.JRadioButton jRadioButton4;
    private javax.swing.JTextField jTextField1;
    private javax.swing.JTextField jTextField2;
    private javax.swing.JTextField jTextField3;
    private javax.swing.JTextField jTextField4;
    // End of variables declaration

}
 

This is my full code.... Please explain me what is the problem that I am having with red cross....

[Raihan Jamal]

This is the image that you have to put in C drive
Just Like...
C:\\photos\\la.jpg

[Michael Dunn]

Graphics g = getGraphics();

will get you the graphics of 'extends javax.swing.JFrame'

so, if you click on the label at the label's 0,0, then tell the frame to draw something at the frame's 0,0
where would you expect it to be drawn?

from the above, can you work out the fix?

also, mouseClicked() is a very poor choice, it requires the x,y co-ords of both mousePressed and mouseReleased
to be identical, otherwise it won't fire i.e. any movement between pressed/released and clicked won't fire.
test it with a slow press/move/release.

[Raihan Jamal]

I wanted to draw the red cross on the JLabel1 where the image of map is located.... but I am not able to figure it out why it is not showing at the same point where I am clicking on the map.... it is showing very far from that where I am clicking.... At the right side of the application I have created JPanel1 and then above JPanel1
I have created JLabel1 and then on the JLabel1 I am showing the Image of Map....
Do tell me what is going wrong.... As I have tried a lot... but I am not able to figure it out....

[Michael Dunn]

you need to work this out for yourself, otherwise you'll never be able to work out any problem.

here's a simple demo program that displays the same problem as yours.
run it, then click anywhere in the right panel (with blue border), little circles will appear in the left panel (black border)
the solution is obvious in this demo, as it is in yours

   
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
class Testing
{
  public void buildGUI()
  {
    JPanel leftPanel = new JPanel();
    JPanel rightPanel = new JPanel();
    leftPanel.setBorder(BorderFactory.createLineBorder(Color.BLACK,5));
    rightPanel.setBorder(BorderFactory.createLineBorder(Color.BLUE,5));
    JPanel p = new JPanel(new GridLayout(1,2));
    p.add(leftPanel);
    p.add(rightPanel);
    JFrame f = new JFrame();
    f.getContentPane().add(p);
    f.setSize(800,600);
    f.setLocationRelativeTo(null);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setVisible(true);
    final Graphics g = leftPanel.getGraphics();
    rightPanel.addMouseListener(new MouseAdapter(){
      public void mousePressed(MouseEvent me){
        g.drawOval(me.getX(),me.getY(),10,10);
      }
    });
  }
  public static void main(String[] args)
  {
    SwingUtilities.invokeLater(new Runnable(){
      public void run(){
        new Testing().buildGUI();
      }
    });
  }
}

[Raihan Jamal]

Thanks a lot for your help... I have figure it out my problem..
Really I have learned a lot with our conversations....
Cheers...

And one more thing.... As you have said that when I am minimizing my windows everything is getting cleared and it is true.... and It is because of the use of getGraphics()

so to remove this thing what I have to do....

[Rob Camick]

so to remove this thing what I have to do....

The answer was given in the first reply.

[pete stein]

crosspost: java-forums.org thread

OP, please read this link: Be Forthright When Cross Posting To Other Sites

Thanks for your cooperation.

/Pete